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[PATCH] guix: Add whitespacing to --list-generations output.


From: Roel Janssen
Subject: [PATCH] guix: Add whitespacing to --list-generations output.
Date: Thu, 17 Nov 2016 09:59:55 +0100

Dear Guix,

The new diff-format displayed when invoking @command{guix package
--list-generations} prints a blank line after the initial generation,
and then no blank lines in the diffs.

This patch adds that blank line to the diffs as well.

Before:
------------------------------------------------------------------------------
Generation 1    Nov 15 2016 11:14:05
  guix  0.10.0-1.97c8   out     /gnu/store/5ibkqq9...-guix-0.10.0-1.97c8

Generation 2    Nov 15 2016 12:06:32
 + emacs        25.1    out     /gnu/store/sb2qfjr...-emacs-25.1
Generation 4    Nov 15 2016 12:22:15
 + guix 0.11.0-3.7ca3   out     /gnu/store/l99rkv2...-guix-0.11.0-3.7ca3
 - guix 0.10.0-1.97c8   out     /gnu/store/5ibkqq9...-guix-0.10.0-1.97c8
------------------------------------------------------------------------------

After:
------------------------------------------------------------------------------
Generation 1    Nov 15 2016 11:14:05
  guix  0.10.0-1.97c8   out     /gnu/store/5ibkqq9...-guix-0.10.0-1.97c8

Generation 2    Nov 15 2016 12:06:32
 + emacs        25.1    out     /gnu/store/sb2qfjr...-emacs-25.1

Generation 4    Nov 15 2016 12:22:15
 + guix 0.11.0-3.7ca3   out     /gnu/store/l99rkv2...-guix-0.11.0-3.7ca3
 - guix 0.10.0-1.97c8   out     /gnu/store/5ibkqq9...-guix-0.10.0-1.97c8
------------------------------------------------------------------------------

As you can see, it's only a small change, and so is the code change.
Here's the patch:

>From a9b5305f8af51b88643986f99a8e94cad4d7a805 Mon Sep 17 00:00:00 2001
From: Roel Janssen <address@hidden>
Date: Thu, 17 Nov 2016 09:46:15 +0100
Subject: [PATCH] guix: Add whitespacing to --list-generations output.

---
 guix/ui.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/guix/ui.scm b/guix/ui.scm
index b9fbbfd..cafb3c6 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -1094,7 +1094,8 @@ DURATION-RELATION with the current time."
           (removed (lset-difference
                     equal-entry? (list-entries old) (list-entries new))))
       (for-each (cut display-entry <> "+") added)
-      (for-each (cut display-entry <> "-") removed)))
+      (for-each (cut display-entry <> "-") removed)
+      (newline)))
 
   (display-diff profile gen1 gen2))
 
-- 
2.7.4

Kind regards,
Roel Janssen



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